/usr/ is in libgmavenplus-java 1.5-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/maven-repo/org/codehaus/gmavenplus/
/usr/share/java/
/usr/share/java/gmavenplus-plugin.jar
/usr/share/maven-repo/
/usr/share/maven-repo/org/
/usr/share/maven-repo/org/codehaus/
/usr/share/
/usr/share/doc/
/usr/share/doc/libgmavenplus-java/
/usr/share/doc/libgmavenplus-java/changelog.Debian.gz
/usr/share/doc/libgmavenplus-java/copyright
/usr/share/maven-repo/org/codehaus/gmavenplus/gmavenplus-plugin/
/usr/share/maven-repo/org/codehaus/gmavenplus/gmavenplus-plugin/1.5/
/usr/share/maven-repo/org/codehaus/gmavenplus/gmavenplus-plugin/1.5/gmavenplus-plugin-1.5.pom
/usr/share/java/gmavenplus-plugin-1.5.jar
/usr/share/maven-repo/org/codehaus/gmavenplus/gmavenplus-plugin/1.5/gmavenplus-plugin-1.5.jar